Treadmill Walking Board Assembly Having Functions of Flow Guidance, Air Exhaust and Heat Dissipation

ABSTRACT

A treadmill walking board assembly includes a base board, a wear-resistant thin layer located above the base board, and a heatsink elastic layer arranged between the base board and the wear-resistant thin layer. The heatsink elastic layer is provided with a plurality of heat dissipation holes and a plurality of recessed flow channels. The flow channels define a plurality of circulation spaces between the heatsink elastic layer and the base board. The flow channels extend through a side edge of the heatsink elastic layer and are connected to each of the heat dissipation holes. Thus, when the user is stepping on the treadmill walking board assembly and presses the heatsink elastic layer, the hot air is delivered through the heat dissipation holes, the flow channels, and the side edge of the heatsink elastic layer.

BACKGROUND OF THE INVENTION 1. Field of the Invention

The present invention relates to a treadmill and, more particularly, to a walking board assembly for a treadmill.

2. Description of the Related Art

A conventional treadmill comprises a walking board, a walking belt, and a plurality of rollers. The walking belt rotates on the walking board along a closed trajectory, to facilitate the user stepping on the walking board successively. The walking belt, the rollers and the walking board rub one another for a long period of time, such that a determined amount of static electricity is accumulated and easily discharged to the user, thereby scaring the user and causing an uncomfortable sensation to the user, and easily interfering with the electronic components of the treadmill. An antistatic yarn is added to the inner side of the walking belt to eliminate the static electricity. However, the antistatic yarn is easily worn out when the walking belt and the walking board rub constantly during a long-term utilization, and loses its antistatic effect gradually. The walking belt, the rollers, and the walking board rub frequently, such that the walking belt and the walking board are easily worn out during a long-term utilization, thereby decreasing the lifetime of the walking belt and the walking board. A slip assistant strip is adhered to the inner side of the walking belt to reduce the friction between the walking belt and the walking board. Alternatively, a melamine layer is stuck on the top surface of the walking board to reduce the friction between the walking belt and the walking board. However, the friction produces a high temperature. Thus, a wear-resistant and high-temperature resistant surface layer is stuck to the walking board, and a lubricant or wax is sprayed on the surface layer, to reduce the friction between the walking belt and the walking board, such that the walking belt is moving on the walking board smoothly, thereby preventing from producing resistance and high temperature due to frequent friction during a long-term utilization. However, the user has to replenish the lubricant or wax frequently when the conventional treadmill is operated during a period of time, thereby greatly causing inconvenience to the user, and thereby increasing the cost.

BRIEF SUMMARY OF THE INVENTION

The primary objective of the present invention is to provide a treadmill walking board assembly treadmill walking board assembly having functions of flow guidance, air exhaust (or drain) and heat dissipation (or radiation).

In accordance with the present invention, there is provided a treadmill walking board assembly comprising a base board, a wear-resistant thin layer, and a heatsink elastic layer. The base board is made of wood material. The wear-resistant thin layer is located above the base board. The heatsink elastic layer is arranged between the base board and the wear-resistant thin layer. The heatsink elastic layer has a top face abutting the wear-resistant thin layer and a bottom face abutting the base board. The heatsink elastic layer is provided with a plurality of heat dissipation holes. The heat dissipation holes perforate the top face and the bottom face of the heatsink elastic layer. The heatsink elastic layer is provided with a plurality of recessed flow channels. The flow channels are formed in the bottom face of the heatsink elastic layer and define a plurality of circulation spaces between the heatsink elastic layer and the base board. The flow channels extend through a side edge of the heatsink elastic layer. The flow channels are connected to a lower end of each of the heat dissipation holes.

According to the primary advantage of the present invention, when the user is stepping or running on the treadmill walking board assembly and presses the heatsink elastic layer, the hot air is delivered through the heat dissipation holes, the flow channels, and the side edge of the heatsink elastic layer, and are drained outward from the heatsink holes of the wear-resistant thin layer, thereby achieving the purposes of flow guidance, air exhaust and heat radiation.

According to another advantage of the present invention, when the user is stepping or running on the treadmill walking board assembly, the heatsink elastic layer is compressed and released repeatedly, such that the hot air is drained through and sucked into the heat dissipation holes and the flow channels successively in a circulating manner, to produce an air ventilating effect like an air cushion, thereby enhancing the shock-absorbing effect of the treadmill walking board assembly.

Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING(S)

FIG. 1 is a perspective view of a treadmill walking board assembly in accordance with the first preferred embodiment of the present invention.

FIG. 2 is an exploded perspective view of the treadmill walking board assembly as shown in FIG. 1.

FIG. 3 is a cross-sectional view of the treadmill walking board assembly as shown in FIG. 1.

FIG. 4 is a locally enlarged view of the treadmill walking board assembly as shown in FIG. 3.

FIG. 5 is a perspective view of a treadmill walking board assembly in accordance with the second preferred embodiment of the present invention.

FIG. 6 is an exploded perspective view of the treadmill walking board assembly as shown in FIG. 5.

FIG. 7 is a cross-sectional view of the treadmill walking board assembly as shown in FIG. 5.

FIG. 8 is a locally enlarged view of the treadmill walking board assembly as shown in FIG. 7.

FIG. 9 is an exploded perspective view of a treadmill walking board assembly in accordance with the third preferred embodiment of the present invention.

FIG. 10 is a perspective view of a heatsink elastic layer of the treadmill walking board assembly in accordance with another preferred embodiment of the present invention.

FIG. 11 is a perspective view of a heatsink elastic layer of the treadmill walking board assembly in accordance with a further preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

Referring to the drawings and initially to FIGS. 1-4, a treadmill walking board assembly in accordance with the preferred embodiment of the present invention comprises a base (or support) board 10, a wear-resistant thin layer 20, and a heatsink elastic layer 30.

The base board 10 is made of wood material. The wear-resistant thin layer 20 is located above the base board 10. The heatsink elastic layer 30 is arranged between the base board 10 and the wear-resistant thin layer 20. The heatsink elastic layer 30 has a top face 301 abutting the wear-resistant thin layer 20 and a bottom face 302 abutting the base board 10. The heatsink elastic layer 30 is provided with a plurality of heat dissipation holes 31. The heat dissipation holes 31 perforate the top face 301 and the bottom face 302 of the heatsink elastic layer 30. The heatsink elastic layer 30 is provided with a plurality of recessed flow channels (or ducts) 32. The flow channels 32 are formed in the bottom face 302 of the heatsink elastic layer 30 and define a plurality of circulation spaces 33 between the heatsink elastic layer 30 and the base board 10. The flow channels 32 extend through a side edge of the heatsink elastic layer 30. The flow channels 32 are connected to a lower end of each of the heat dissipation holes 31. The flow channels 32 are directed in a horizontal direction.

In the preferred embodiment of the present invention, the heatsink elastic layer 30 is made of foam material.

In the preferred embodiment of the present invention, the heat dissipation holes 31 are arranged in a vertical direction.

In the preferred embodiment of the present invention, the flow channels 32 extend through the heatsink elastic layer 30 transversely. The flow channels 32 are arranged regularly. The flow channels 32 are adjacent to each other.

In the preferred embodiment of the present invention, the flow channels 32 are arranged linearly.

In the preferred embodiment of the present invention, each of the flow channels 32 has a cross section defining an arcuate concave face.

In practice, the treadmill walking board assembly is mounted on a treadmill and surrounded by a walking belt which forms a closed revolving track.

Referring to FIGS. 5-8, the flow channels 32 are formed in the top face 301 of the heatsink elastic layer 30 and define a plurality of circulation spaces 35 between the heatsink elastic layer 30 and the wear-resistant thin layer 20. The flow channels 32 are connected to an upper end of each of the heat dissipation holes 31.

Referring to FIG. 9, the wear-resistant thin layer 20 is provided with a plurality of heatsink holes 21. The heatsink holes 21 perforate the wear-resistant thin layer 20.

Referring to FIG. 10, the flow channels 32 extend through the heatsink elastic layer 30 longitudinally. The flow channels 32 are arranged regularly. The flow channels 32 are adjacent to each other.

Referring to FIG. 11, the flow channels 32 are arranged irregularly.

The structure, design, construction, and function of the treadmill walking board assembly of the present invention are illustrated as follows.

As shown in FIGS. 1-4, in the first preferred embodiment of the present invention, the flow channels 32 are formed in the bottom face 302 of the heatsink elastic layer 30 and are connected to the lower end of each of the heat dissipation holes 31. The flow channels 32 are directed in a horizontal direction. In such a manner, when the user is stepping or running on the treadmill walking board assembly, the heatsink elastic layer 30 is compressed, such that the hot air is delivered through the heat dissipation holes 31 and the flow channels 32, and are drained outward from the side edge of the heatsink elastic layer 30.

As shown in FIGS. 5-8, in the second preferred embodiment of the present invention, the flow channels 32 are formed in the top face 301 and the bottom face 302 of the heatsink elastic layer 30 and are connected to the upper end and the lower end of each of the heat dissipation holes 31 respectively. In such a manner, when the user is stepping or running on the treadmill walking board assembly, the heatsink elastic layer 30 is compressed, such that the hot air is delivered through the upper end and the lower end of each of the heat dissipation holes 31 and the flow channels 32 of the top face 301 and the bottom face 302, and are drained outward from the side edge of the heatsink elastic layer 30.

As shown in FIG. 9, in the third preferred embodiment of the present invention, the wear-resistant thin layer 20 is provided with a plurality of heatsink holes 21 that perforate the wear-resistant thin layer 20. In such a manner, when the user is stepping or running on the treadmill walking board assembly, the heatsink elastic layer 30 is compressed, such that the hot air is delivered through the lower end of each of the heat dissipation holes 31 and the flow channels 32 of the bottom face 302, and are drained outward from the side edge of the heatsink elastic layer 30. At the same time, the hot air is also delivered through the upper end of each of the heat dissipation holes 31, the flow channels 32 of the top face 301, and the side edge of the heatsink elastic layer 30, and are drained outward from the heatsink holes 21 of the wear-resistant thin layer 20.

Accordingly, the treadmill walking board assembly of the present invention has the following advantages.

1. When the user is stepping or running on the treadmill walking board assembly and presses the heatsink elastic layer 30, the hot air is delivered through the heat dissipation holes 31, the flow channels 32, and the side edge of the heatsink elastic layer 30, and are drained outward from the heatsink holes 21 of the wear-resistant thin layer 20, thereby achieving the purposes of flow guidance, air exhaust and heat radiation.

2. When the user is stepping or running on the treadmill walking board assembly, the heatsink elastic layer 30 is compressed and released repeatedly, such that the hot air is drained through and sucked into the heat dissipation holes 31 and the flow channels 32 successively in a circulating manner, to produce an air ventilating effect like an air cushion, thereby enhancing the shock-absorbing effect of the treadmill walking board assembly.

Although the invention has been explained in relation to its preferred embodiment(s) as mentioned above, it is to be understood that many other possible modifications and variations can be made without departing from the scope of the present invention. It is, therefore, contemplated that the appended claim or claims will cover such modifications and variations that fall within the scope of the invention. 

1. A treadmill walking board assembly comprising: a base board, a wear-resistant thin layer, and a heatsink elastic layer; wherein: the base board is made of wood material; the wear-resistant thin layer is located above the base board; the heatsink elastic layer is arranged between the base board and the wear-resistant thin layer; the heatsink elastic layer has a top face abutting the wear-resistant thin layer and a bottom face abutting the base board; the heatsink elastic layer is provided with a plurality of heat dissipation holes; the heat dissipation holes perforate the top face and the bottom face of the heatsink elastic layer; the heatsink elastic layer is provided with a plurality of recessed flow channels; the flow channels are formed in the bottom face of the heatsink elastic layer and define a plurality of circulation spaces between the heatsink elastic layer and the base board; the flow channels extend through a side edge of the heatsink elastic layer; and the flow channels are connected to a lower end of each of the heat dissipation holes.
 2. The treadmill walking board assembly as claimed in claim 1, wherein the heatsink elastic layer is made of foam material.
 3. The treadmill walking board assembly as claimed in claim 1, wherein the heat dissipation holes are arranged in a vertical direction.
 4. The treadmill walking board assembly as claimed in claim 1, wherein: the flow channels extend through the heatsink elastic layer transversely; the flow channels are arranged regularly; and the flow channels are adjacent to each other.
 5. The treadmill walking board assembly as claimed in claim 1, wherein: the flow channels extend through the heatsink elastic layer longitudinally; the flow channels are arranged regularly; and the flow channels are adjacent to each other.
 6. The treadmill walking board assembly as claimed in claim 1, wherein the flow channels are arranged irregularly.
 7. The treadmill walking board assembly as claimed in claim 1, wherein each of the flow channels has a cross section defining an arcuate concave face.
 8. The treadmill walking board assembly as claimed in claim 1, wherein the flow channels are arranged linearly.
 9. The treadmill walking board assembly as claimed in claim 1, wherein: the flow channels are formed in the top face of the heatsink elastic layer and define a plurality of circulation spaces between the heatsink elastic layer and the wear-resistant thin layer; and the flow channels are connected to an upper end of each of the heat dissipation holes.
 10. The treadmill walking board assembly as claimed in claim 1, wherein: the wear-resistant thin layer is provided with a plurality of heatsink holes; and the heatsink holes perforate the wear-resistant thin layer. 